CN107382324A - Carbon/silicon carbide ceramic matrix composite and preparation method thereof - Google Patents
Carbon/silicon carbide ceramic matrix composite and preparation method thereof Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of carbon/silicon carbide ceramic matrix composite being machined and preparation method thereof.A kind of carbon/silicon carbide ceramic matrix composite, its raw material prepared include：Carborundum starting powder, forming agent, the second phase material and third phase material；Wherein, the addition of forming agent is 5% the 10% of carborundum starting powder；The weight ratio of the addition sum of second phase material and third phase material and carborundum starting powder is 0.2 1；The element of raw material includes carbon, silicon, hydrogen and 24 kinds of elements in lithium, beryllium, boron, nitrogen, oxygen, aluminium, titanium, iron.By the above-mentioned means, the embodiment of the present invention can strengthen the machining property of carbon/silicon carbide ceramic matrix composite, the carbon/silicon carbide ceramic matrix composite can improve the mold use life-span as the material of high temp glass mould.
Description
Technical field
The present embodiments relate to technical field of ceramic material, more particularly to a kind of silicon carbide ceramics being machined
Based composites and preparation method thereof.
Background technology
High temp glass is that the glasswares such as electronic display, 3D protection screens are important in shaping and sintering process with mould
Instrument, the material character of mould, service life are the glassware such as 3D protection screens quality, cost, the key factor of economic benefit.
Physical-chemical reaction and the mechanical movement of a series of complex can occur during hot forming for glassware, therefore
It is required that mold materials will possess excellent machining property, thermal fatigue resistance, thermal conductivity, corrosion resistance, inoxidizability, polishability
And uniform texture, also to possess that thermal coefficient of expansion is small, antibiosis is long, not easily broken, the features such as being not easy to be moistened by glass, but
It is that there is no a kind of metal all to possess these superperformances so far.
At present, the mold materials of the glassware such as 3D protection screens are mainly graphite, but material to be present loose for graphite jig,
It is easily damaged, the shortcomings of thermal fatigue resistance is poor, high temperature is oxidizable, product qualification rate is low, service life is short.Silicon carbide ceramics mould
Many aspects can overcome graphite jig the shortcomings that, but silicon carbide ceramics is typical hard brittle material, machinability be present
The problems such as extreme difference, high processing costs.So research and development are a kind of both to have good physical and chemical performance, it is easy to be machined again
New glass mold materials be the product urgent problems such as current production electronic display, glass protection screen.
The content of the invention
The embodiment of the present invention is mainly solving the technical problems that to provide a kind of carbon/silicon carbide ceramic matrix for being machined compound
Material and preparation method thereof, the machining property of carbon/silicon carbide ceramic matrix composite can be strengthened, the carbon/silicon carbide ceramic matrix is answered
Condensation material can improve the mold use life-span as the material of high temp glass mould.
In order to solve the above technical problems, the technical scheme that the embodiment of the present invention uses is：A kind of carborundum pottery is provided
Porcelain based composites, its raw material prepared include：Carborundum starting powder, forming agent, the second phase material and third phase material；
Wherein, the addition of forming agent is the 5%-10% of carborundum starting powder；
The addition sum of second phase material and third phase material and the weight ratio of carborundum starting powder are 0.2-1；
Second phase material is lithium, beryllium, boron, carbon, silicon, aluminium, titanium, one or more simple substance in iron, third phase material be lithium,
One or more simple substance in beryllium, boron, carbon, silicon, aluminium, titanium, iron, the second phase material and third phase material are different；Or second
Phase material is lithium, beryllium, boron, carbon, silicon, aluminium, titanium, one or more simple substance in iron, third phase material be carborundum, silicon nitride,
One or more compounds in boron carbide, boron nitride, and/or by two or three of element in lithium, beryllium, boron, aluminium, titanium, iron
One or more alloys in the alloy of formation；
The element of raw material includes carbon, silicon, hydrogen and the 2-4 kind elements in lithium, beryllium, boron, nitrogen, oxygen, aluminium, titanium, iron.
Alternatively, the one kind of forming agent in paraffin, ethyl acetate, polyethylene glycol, resin.
Alternatively, when the element of the second phase material and third phase material is containing only carbon, silicon, forming agent is resin, wherein, tree
Fat includes nitrogen and oxygen element；
When the element of the second phase material and third phase material is containing only carbon and/or silicon, and the another kind member in addition to carbon, silicon
When plain, the one kind of forming agent in ethyl acetate, polyethylene glycol, resin, wherein, resin includes nitrogen and/or oxygen element
Resin.
Alternatively, when third phase material is the alloy that is formed by two or three of element in lithium, beryllium, boron, aluminium, titanium, iron
In one or more alloys when, one or more alloys element based on iron.
Alternatively, the particle size range of carborundum starting powder is 0.1-100 microns.
Alternatively, the particle size range of the second phase material and third phase material is 0.01-100 microns.
The embodiment of the present invention also provides a kind of preparation method of carbon/silicon carbide ceramic matrix composite, including：
By following raw material：Carborundum starting powder, forming agent, the second phase material and third phase material mixing, with four posts
Press is pressed into bulk in a mold, is fitted into after degumming in composite pyrophyllite and is sintered using cubic hinge press increasing temperature and pressure, pressure release
After take out；
Wherein, the addition of forming agent is the 5%-10% of the carborundum starting powder；
The addition sum of second phase material and third phase material and the weight ratio of carborundum starting powder are 0.2-1；
Second phase material is lithium, beryllium, boron, carbon, silicon, aluminium, titanium, one or more simple substance in iron, third phase material be lithium,
One or more simple substance in beryllium, boron, carbon, silicon, aluminium, titanium, iron, the second phase material and third phase material are different；Or second
Phase material is lithium, beryllium, boron, carbon, silicon, aluminium, titanium, one or more simple substance in iron, third phase material be carborundum, silicon nitride,
One or more compounds in boron carbide, boron nitride, and/or by two or three of element in lithium, beryllium, boron, aluminium, titanium, iron
One or more compounds in the alloy of formation；
The element of raw material includes carbon, silicon, hydrogen and the 2-4 kind elements in lithium, beryllium, boron, nitrogen, oxygen, aluminium, titanium, iron.
Alternatively, the one kind of forming agent in paraffin, ethyl acetate, polyethylene glycol, resin.
Alternatively, the particle size range of carborundum starting powder is 0.1-100 microns.
Alternatively, increasing temperature and pressure sintering includes：1-3 minutes boost to 60-100MPA first, and boosting starts to add after 40 seconds
Heat, heating power are 5 kilovolt-amperes；Heating power is raised to 7 kilovolt-amperes after insulation 4-6 minutes, sintering overall process is electric according to providing
The time of stream calculates, and is 30-60 minutes；After reaching preset time, pressure release after 5-10 minutes.
The beneficial effect of the embodiment of the present invention is：The situation of prior art is different from, the embodiment of the present invention prepares carborundum
The raw material of ceramic matric composite include：Carborundum starting powder, forming agent, the second phase material and third phase material, in height
Under warm high pressure, energy interreaction between carborundum starting powder, forming agent, the second phase material and third phase material, by carbon
The second phase simple substance and third phase compound are introduced in SiClx powder, the machining of carbon/silicon carbide ceramic matrix composite can be strengthened
Performance, the carbon/silicon carbide ceramic matrix composite can improve the mold use life-span as the material of high temp glass mould.
Brief description of the drawings
Fig. 1 is the sintering of the increasing temperature and pressure in the preparation method of carbon/silicon carbide ceramic matrix composite provided in an embodiment of the present invention
Artwork.
Specific embodiment
In order that the purpose of the present invention, method scheme and advantage are more clearly understood, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Term "and/or" used in this specification includes the arbitrary and all of one or more related Listed Items
Combination.As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
The embodiment of the present invention provides a kind of carbon/silicon carbide ceramic matrix composite, and its raw material prepared includes：Carborundum is former
Beginning powder, forming agent, the second phase material and third phase material；
Wherein, the addition of forming agent is the 5%-10% of carborundum starting powder；
The addition sum of second phase material and third phase material and the weight ratio of carborundum starting powder are 0.2-1；
Second phase material is lithium, beryllium, boron, carbon, silicon, aluminium, titanium, one or more simple substance in iron, third phase material be lithium,
One or more simple substance in beryllium, boron, carbon, silicon, aluminium, titanium, iron, the second phase material and third phase material are different；Or second
Phase material is lithium, beryllium, boron, carbon, silicon, aluminium, titanium, one or more simple substance in iron, third phase material be carborundum, silicon nitride,
One or more compounds in boron carbide, boron nitride, and/or by two or three of element in lithium, beryllium, boron, aluminium, titanium, iron
One or more alloys in the alloy of formation；
The element of raw material includes carbon, silicon, hydrogen and the 2-4 kind elements in lithium, beryllium, boron, nitrogen, oxygen, aluminium, titanium, iron.
Such as, the second phase material is carbon, and third phase material is boron；And for example, the second phase material is carbon, silicon, and third phase material is
Aluminium, iron；And for example, the second phase material is carbon, and third phase material is boron nitride；And for example, the second phase material is silicon, and third phase material is
Ferro-titanium.
Alternatively, the one kind of forming agent in paraffin, ethyl acetate, polyethylene glycol, resin.
It will be understood by those of skill in the art that when the element of the second phase material and third phase material is containing only carbon, silicon, into
Type agent is resin, wherein, resin includes nitrogen and oxygen element；When the element of the second phase material and third phase material is containing only carbon
And/or silicon, and during another element in addition to carbon, silicon, forming agent in ethyl acetate, polyethylene glycol, resin one
Kind, wherein, resin includes nitrogen and/or oxygen element, to meet the element requirement of raw material.
In the present embodiment, when third phase material is what is formed by two or three of element in lithium, beryllium, boron, aluminium, titanium, iron
During one or more alloys in alloy, one or more alloys element based on iron.
Alternatively, the particle size range of carborundum starting powder is 0.1-100 microns.Preferably, carborundum starting powder
Particle size range is 1-50 microns.
Alternatively, the particle size range of the second phase material and third phase material is 0.01-100 microns.
It should be noted that the raw material prepared can also include other materials in addition to above-mentioned four classes material, as manganese,
Cobalt, nickel or other transition metals, the addition of appropriate manganese, cobalt, nickel or other transition metals can also further improve
The physics of carbon/silicon carbide ceramic matrix composite, chemical property.
The embodiment of the present invention also provides a kind of preparation method of carbon/silicon carbide ceramic matrix composite, including：
By following raw material：Carborundum starting powder, forming agent, the second phase material and third phase material are sufficiently mixed, and are used
Four-column press is pressed into bulk in a mold, is fitted into after degumming in composite pyrophyllite and is sintered using cubic hinge press increasing temperature and pressure,
Taken out after pressure release；
Wherein, the addition of forming agent is the 5%-10% of carborundum starting powder；
The addition sum of second phase material and third phase material and the weight ratio of carborundum starting powder are 0.2-1；
Second phase material is lithium, beryllium, boron, carbon, silicon, aluminium, titanium, one or more simple substance in iron, third phase material be lithium,
One or more simple substance in beryllium, boron, carbon, silicon, aluminium, titanium, iron, the second phase material and third phase material are different；Or second
Phase material is lithium, beryllium, boron, carbon, silicon, aluminium, titanium, one or more simple substance in iron, third phase material be carborundum, silicon nitride,
One or more compounds in boron carbide, boron nitride, and/or by two or three of element in lithium, beryllium, boron, aluminium, titanium, iron
One or more alloys in the alloy of formation；
The element of raw material includes carbon, silicon, hydrogen and the 2-4 kind elements in lithium, beryllium, boron, nitrogen, oxygen, aluminium, titanium, iron.
In the present embodiment, increasing temperature and pressure sintering includes：1-3 minutes boost to 60-100MPa first, and boosting starts after 40 seconds
Heating, heating power are 5 kilovolt-amperes；Heating power is raised to 7 kilovolt-amperes after insulation 4-6 minutes, sintering overall process is according to offer
The time of electric current calculates, and is 30-60 minutes；After reaching preset time, pressure release after 5-10 minutes.
Alternatively, the one kind of forming agent in paraffin, ethyl acetate, polyethylene glycol, resin.
When the element of the second phase material and third phase material is containing only carbon, silicon, forming agent is resin, wherein, resin includes
Nitrogen and oxygen element；When the element of the second phase material and third phase material is containing only carbon and/or silicon, and in addition to carbon, silicon
During another element, the one kind of forming agent in ethyl acetate, polyethylene glycol, resin, wherein, resin include nitrogen and/
Or oxygen element, to meet the element requirement of raw material.
At high temperature under high pressure, can be mutually opposite between carborundum starting powder, forming agent, the second phase material and third phase material
Should, obtain carbon/silicon carbide ceramic matrix composite., can by introducing the second phase simple substance and third phase compound in silicon carbide powder
Improve physics, the chemical property of carbon/silicon carbide ceramic matrix composite, wherein third phase compound can be by different materials in high temperature
Reaction obtains under high pressure, directly can also be added when preparing.
Such as, raw material include carborundum starting powder, forming agent, carbon, silicon, wherein, forming agent is to include nitrogen and oxygen
The resin of element, interreaction generation carborundum, nitridation between forming agent, the second phase material and third phase material under HTHP
Silicon and silica, the second phase simple substance is carbon in obtained composite, and third phase compound is carborundum, silicon nitride and dioxy
SiClx；And for example, raw material include carborundum starting powder, forming agent, carbon, boron, wherein, forming agent is the tree comprising nitrogen
Fat, interreaction generation boron carbide and boron nitride between forming agent, the second phase material and third phase material under HTHP, is obtained
Composite in the second phase simple substance be carbon, third phase compound is boron carbide and boron nitride.
When third phase material is one kind in the alloy formed by two or three of element in lithium, beryllium, boron, aluminium, titanium, iron
Or during a variety of alloys, one or more alloys element based on iron.
Alternatively, the particle size range of carborundum starting powder is 0.1-100 microns.Preferably, carborundum starting powder
Particle size range is 1-50 microns.
Alternatively, the particle size range of the second phase material and third phase material is 0.01-100 microns.
One can be produced by the species of the second phase material of adjustment and third phase material, additional proportion, granule size etc.
The carbon/silicon carbide ceramic matrix composite that series can be machined, its physics, chemical property index and service life meet different shaped
Number, the requirement of the high temp glass moulds of different purposes.
It should be noted that the raw material prepared can also include other materials in addition to above-mentioned four classes material, as manganese,
Cobalt, nickel or other transition metals, the addition of appropriate manganese, cobalt, nickel or other transition metals can also further improve
The physics of carbon/silicon carbide ceramic matrix composite, chemical property.
Below by way of specific embodiment and comparative example to the present embodiments relate to carbon/silicon carbide ceramic matrix composite wood
Material illustrates.
Embodiment 1
Claim the carborundum starting powder of 500 grams of 20-50 microns；The silica flour (98.5%) of 200 grams of 1-2 microns is claimed to be used as second
Phase material；Claim 50 grams of forming agents；High-purity carbon dust (99.996%) of 300 grams of 10-50 microns is claimed to be used as third phase material；Four fill
Divide mixing, bulk is pressed into a mold with four-column press, it is that the special compound leaf of cubic hinge press is cured to load after 800 degree of degummings
Shi Zhong, sintering process line using cubic hinge press and then as shown in Figure 1 carry out hot pressed sintering, and abscissa is the time in figure, is indulged
Coordinate is pressure and heating power, qualitative sign.Pressure (P) is boosted into 70Mpa for 2 minutes first, boosting starts after 40 seconds
Heating, heating power (A) are 5 kilovolt-amperes；Heating power (B) is raised to 7 kilovolt-amperes after insulation 5 minutes, sintering overall process according to
The time for providing electric current calculates, and is 60 minutes；After reaching preset time, pressure release after 10 minutes.
The carbon/silicon carbide ceramic matrix composite test block, testing experiment block density are taken out after pressure release:2.98g/cm3, bending resistance
Intensity is not less than 100MPa, and compression strength is not less than 300MPa；Hardness is more than shore100, thermal coefficient of expansion 4.7EX10-6/
DEG C, thermal conductivity is 100W/m ˙ DEG C, and this test block can easily be processed by being modified YG3X milling cutters with diamond.
Embodiment 2
Claim the carborundum starting powder of 800 grams of 10-20 microns；Claim high purity boron powder (99.9%) conduct of 80 grams of 1-2 microns
Second phase material；Claim 50 grams of forming agents；120 grams 10 microns of high-purity carbon dust (99.996%) is claimed to be used as third phase material；Four
It is sufficiently mixed, bulk is pressed into a mold with four-column press, loads after 200 degree of degummings for the special compound leaf of cubic hinge press
In cured stone, hot pressed sintering is carried out using cubic hinge press, for flow with embodiment 1, difference is that it is 40 points to sinter overall process
Clock.
The carbon/silicon carbide ceramic matrix composite test block, testing experiment block density are taken out after pressure release:2.88g/cm3, bending resistance
Intensity is not less than 150MPa, and compression strength is not less than 400MPa；Hardness is more than shore100, thermal coefficient of expansion 4.7EX10-6/
DEG C, thermal conductivity is 100W/m ˙ DEG C, and this test block can easily be processed by being modified YG3X milling cutters with diamond.
Embodiment 3
Claim the carborundum starting powder of 800 grams of 1-3 microns；The high purity boron powder (99.9%) of 80 grams of 1-2 microns is claimed to be used as the
Two-phase material；Claim 50 grams of forming agents；120 grams 1 micron of high-purity carbon dust (99.996%) is claimed to be used as third phase material；Four is abundant
Mixing, bulk is pressed into four-column press in a mold, is loaded after 600 degree of degummings for the special composite pyrophyllite of cubic hinge press
In, hot pressed sintering is carried out using cubic hinge press, flow is the same as embodiment 1.
The carbon/silicon carbide ceramic matrix composite test block, testing experiment block density are taken out after pressure release:2.68g/cm3, bending resistance
Intensity is not less than 180MPa, and compression strength is not less than 300MPa；Hardness is more than shore120, thermal coefficient of expansion 4.37EX10-6/
DEG C, thermal conductivity is 100W/m ˙ DEG C, and this test block can easily be processed by being modified YG3X milling cutters with diamond.
Embodiment 4
Claim the carborundum starting powder of 800 grams of 40-50 microns；The boron powder (96.0%) of 50 grams of 1-2 microns is claimed to be used as second
Phase material；Claim 50 grams of forming agents；110 grams 10 microns of high-purity carbon dust (99.996%) is claimed to be used as third phase material；Four is abundant
Mixing, bulk is pressed into four-column press in a mold, is loaded after 350 degree of degummings for the special composite pyrophyllite of cubic hinge press
In, hot pressed sintering is carried out using cubic hinge press, flow is the same as embodiment 1.
The carbon/silicon carbide ceramic matrix composite test block, testing experiment block density are taken out after pressure release:2.56g/cm3, bending resistance
Intensity is not less than 150MPa, and compression strength is not less than 300MPa；Hardness is more than shore100, thermal coefficient of expansion 4.57EX10-6/
DEG C, thermal conductivity is 80W/m ˙ DEG C, and this test block can easily be processed by being modified YG3X milling cutters with diamond.
Embodiment 5
Claim the carborundum starting powder of 800 grams of 40-50 microns；Claim 100 grams 10 microns high-purity carbon dust (96.0%) conduct
Second phase material；Claim 50 grams of forming agents；Claim 100 grams 10 microns of boron carbide as third phase material；Four are sufficiently mixed, with four
Post press is pressed into bulk in a mold, and it is in the special composite pyrophyllite of cubic hinge press, using six to be fitted into after 350 degree of degummings
Face high pressure apparatus carries out hot pressed sintering, and flow is the same as embodiment 1.
The carbon/silicon carbide ceramic matrix composite test block, testing experiment block density are taken out after pressure release:2.58g/cm3, bending resistance
Intensity is not less than 100MPa, and compression strength is not less than 200MPa；Hardness is more than shore100, thermal coefficient of expansion 4.3EX10-6/
DEG C, thermal conductivity is 100W/m ˙ DEG C, and this test block can easily be processed by being modified YG3X milling cutters with diamond.
Embodiment 6
Claim the carborundum starting powder of 500 grams of 10-20 microns；The silica flour (98.5%) of 200 grams of 1-2 microns is claimed to be used as second
Phase material；Claim 50 grams of forming agents；Claim 100 grams 10 microns of boron carbide, the Ti-Fe-Mn alloy of 10 grams of 10-50 microns is as third phase
Material；Four are sufficiently mixed, and bulk is pressed into a mold with four-column press, are loaded after 500 degree of degummings for cubic hinge press spy
In the composite pyrophyllite of system, hot pressed sintering is carried out using cubic hinge press, flow is the same as embodiment 1.
The carbon/silicon carbide ceramic matrix composite test block, testing experiment block density are taken out after pressure release:2.78g/cm3, bending resistance
Intensity is not less than 120MPa, and compression strength is not less than 250MPa；Hardness is more than shore100, thermal coefficient of expansion 4.4EX10-6/
DEG C, thermal conductivity is 100W/m ˙ DEG C, and this test block can easily be processed by being modified YG3X milling cutters with diamond.
Comparative example 1
Claim the carborundum starting powder of 800 grams of 10-20 microns；Claim 50 grams of forming agents；The two is sufficiently mixed, and uses four-column press
Bulk is pressed into a mold, and it is in the special composite pyrophyllite of cubic hinge press, using cubic pressure to be fitted into after 200 degree of degummings
Machine carries out hot pressed sintering, and flow is the same as embodiment 2.
The carbon/silicon carbide ceramic matrix composite test block, testing experiment block density are taken out after pressure release:3.2g/cm3, bending resistance is strong
Degree is not higher than 50MPa, and compression strength is not higher than 50MPa；Hardness is less than shore25, and thermal coefficient of expansion can not be surveyed, and thermal conductivity can not
Survey.
Comparative example 2
Claim the silicon carbide powder of 800 grams of 40-50 microns；Claim 50 grams of forming agents；Claim 110 grams 10 microns of high-purity carbon dust
(99.996%) it is used as the second phase material；Three is sufficiently mixed, and bulk, 350 degree of degummings are pressed into a mold with four-column press
It is fitted into afterwards in the special composite pyrophyllite of cubic hinge press, hot pressed sintering, the same embodiment of flow are carried out using cubic hinge press
1。
The carbon/silicon carbide ceramic matrix composite test block, testing experiment block testing experiment block density are taken out after pressure release:2.2g/
cm3, bending strength is not higher than 50MPa, and compression strength is not higher than 50MPa；Hardness is less than shore20, and thermal coefficient of expansion can not be surveyed,
Thermal conductivity can not be surveyed.
Comparative example 1 directly prepares silicon carbide ceramics using carborundum starting powder, and comparative example 2 is only with second
Phase material is modified to carborundum starting powder, prepares carbon/silicon carbide ceramic matrix composite, bending resistance in two groups of test data
Intensity is not higher than 50MPa, and compression strength is not higher than 50Mpa, hence it is evident that less than embodiment 1-6.By above-described embodiment,
By adding the second phase material and third phase material in the preparation process of silicon carbide ceramics, silicon carbide powder can be significantly improved
Physics, chemical property.Because at high temperature under high pressure, between carborundum starting powder, forming agent, the second phase material and third phase material
Interreaction, the material of addition or the material of reaction generation play a part of sintering aid and dispersant, can improve carborundum pottery
The bulk strength of porcelain so that the carbon/silicon carbide ceramic matrix composite of preparation can be machined, and its physics, chemical property index and be made
With the life-span meet different model, different purposes high temp glass mould requirement.
Embodiments of the invention are the foregoing is only, not thereby limit the scope of the present invention, it is every to be said using the present invention
The equivalent structure or equivalent flow conversion that bright book and accompanying drawing content are made, or directly or indirectly it is used in other related technology necks
Domain, similarly include within the scope of the present invention.
Claims (10)
1. a kind of carbon/silicon carbide ceramic matrix composite, it is characterised in that its raw material prepared includes：Carborundum starting powder,
Forming agent, the second phase material and third phase material；
Wherein, the addition of the forming agent is the 5%-10% of the carborundum starting powder；
The addition sum of the second phase material and the third phase material and the weight ratio of the carborundum starting powder are
0.2-1；
The second phase material is lithium, one or more simple substance in beryllium, boron, carbon, silicon, aluminium, titanium, iron, the third phase material
For one or more simple substance in lithium, beryllium, boron, carbon, silicon, aluminium, titanium, iron, the second phase material and the third phase material are not
Equally；Or the second phase material is lithium, one or more simple substance in beryllium, boron, carbon, silicon, aluminium, titanium, iron, the described 3rd
Phase material is carborundum, silicon nitride, boron carbide, one or more compounds in boron nitride, and/or by lithium, beryllium, boron, aluminium,
One or more alloys in the alloy that two or three of element in titanium, iron is formed；
The element of the raw material includes carbon, silicon, hydrogen and the 2-4 kind elements in lithium, beryllium, boron, nitrogen, oxygen, aluminium, titanium, iron.
2. carbon/silicon carbide ceramic matrix composite according to claim 1, it is characterised in that
The one kind of the forming agent in paraffin, ethyl acetate, polyethylene glycol, resin.
3. carbon/silicon carbide ceramic matrix composite according to claim 2, it is characterised in that
When the element of the second phase material and the third phase material is containing only carbon, silicon, the forming agent is resin, wherein,
The resin includes nitrogen and oxygen element；
When the element of the second phase material and third phase material is containing only carbon and/or silicon, and the another kind member in addition to carbon, silicon
When plain, the one kind of the forming agent in ethyl acetate, polyethylene glycol, resin, wherein, the resin include nitrogen and/
Or the resin of oxygen element.
4. carbon/silicon carbide ceramic matrix composite according to claim 1, it is characterised in that
When the third phase material is one kind in the alloy formed by two or three of element in lithium, beryllium, boron, aluminium, titanium, iron
Or during a variety of alloys, one or more alloys element based on iron.
5. according to the carbon/silicon carbide ceramic matrix composite described in claim any one of 1-4, it is characterised in that
The particle size range of the carborundum starting powder is 0.1-100 microns.
6. according to the carbon/silicon carbide ceramic matrix composite described in claim any one of 1-4, it is characterised in that
The particle size range of the second phase material and the third phase material is 0.01-100 microns.
A kind of 7. preparation method of carbon/silicon carbide ceramic matrix composite, it is characterised in that including：
By following raw material：Carborundum starting powder, forming agent, the second phase material and third phase material mixing, use four-column press
Bulk is pressed into a mold, is fitted into after degumming in composite pyrophyllite and is sintered using cubic hinge press increasing temperature and pressure, is taken after pressure release
Go out；
Wherein, the addition of the forming agent is the 5%-10% of the carborundum starting powder；
The addition sum of the second phase material and the third phase material and the weight ratio of the carborundum starting powder are
0.2-1；
The second phase material is lithium, one or more simple substance in beryllium, boron, carbon, silicon, aluminium, titanium, iron, the third phase material
For one or more simple substance in lithium, beryllium, boron, carbon, silicon, aluminium, titanium, iron, the second phase material and the third phase material are not
Equally；Or the second phase material is lithium, one or more simple substance in beryllium, boron, carbon, silicon, aluminium, titanium, iron, the described 3rd
Phase material is carborundum, silicon nitride, boron carbide, one or more compounds in boron nitride, and/or by lithium, beryllium, boron, aluminium,
One or more compounds in the alloy that two or three of element in titanium, iron is formed；
The element of the raw material includes carbon, silicon, hydrogen and the 2-4 kind elements in lithium, beryllium, boron, nitrogen, oxygen, aluminium, titanium, iron.
8. preparation method according to claim 7, it is characterised in that
The one kind of the forming agent in paraffin, ethyl acetate, polyethylene glycol, resin.
9. preparation method according to claim 7, it is characterised in that
The particle size range of the carborundum starting powder is 0.1-100 microns.
10. according to the preparation method described in claim any one of 7-9, it is characterised in that
The increasing temperature and pressure sintering includes：1-3 minutes boost to 60-100MPa first, and boosting is begun to warm up after 40 seconds, heats work(
Rate is 5 kilovolt-amperes；The heating power is raised to 7 kilovolt-amperes after insulation 4-6 minutes, sintering overall process according to provide electric current when
Between calculate, be 30-60 minutes；After reaching preset time, pressure release after 5-10 minutes.
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